Adding and Subtracting Integers

In this video, Mr. J explains how to add integers using different strategies. He covers four examples, demonstrating how to handle both different and same sign integers. The video includes methods using absolute values and mental math, providing a comprehensive understanding of integer addition. Mr. J also mentions a related video on using a number line for visualization.

What is the first step in adding integers with different signs?

• Multiply the integers.

• Find the absolute values of the integers.

• Add the integers directly.

• Ignore the signs of the integers.

When adding -5 and 7, what is the absolute value of -5?

• -7

• -5

• 7

• 5

Using mental math, if you start at -5 and add 7, where do you end up?

• 2

• 0

• -2

• 5

In the problem 20 + (-12), what is the result of subtracting the smaller absolute value from the greater one?

• 8

• 32

• 12

• 20

What is the final answer for 20 + (-12) using the sign of the greater absolute value?

• 20

• -20

• 8

• -8

When adding -13 and -4, what is the sum of their absolute values?

• 4

• 13

• 17

• 9

What is the result of -13 + (-4) using mental math?

• -4

• -17

• -13

• -9

For the problem -25 + (-8), what is the sum of the absolute values?

• 25

• 33

• 8

• 17

What is the final answer for -25 + (-8) using the same sign from the problem?

• -33

• 33

• -8

• -25

Using mental math, if you start at -25 and add -8, where do you end up?

• -8

• -25

• -17

• -33